My monorail track lighting
stopped working. All of the lamps work if I push a little on one of the lampshades (making better contact with the track or something?) but only for as long as I'm pushing. I have already tried removing all the lamps from the railing, cleaning the railing and the contacts of the lamps, and making sure they are all screwed on as tightly as possible, as well as making sure the thingees that hold up the track are all screwed in as tightly as possible also. What should I be trying next? Thank you!
posted by karbonokapi
on Dec 5, 2013 -
I heard this weird buzzing sound coming from my basement today, and I eventually opened up the ceiling and traced it to this transformer or something that's up in there. I tapped it with a piece of non-conductive material and it stopped buzzing. Tapped it again, it started buzzing more quietly, and then I tapped it again and it was silent. Anyone have any idea what this is, and why it's there? The house is from 1952 and doesn't have any electrical issues that I know of. Pictures:
posted by Slinga
on Oct 23, 2013 -
We had planned to replacing an old ceiling light fixture (70's?) in our 1927 home, and after carefully taking down the old light, have uncovered this mess.
We'll be calling our electrician on Monday, but in the meantime, can someone explain what we're looking at? [more inside]
posted by sarahmelah
on Sep 28, 2013 -
We had an electrical incident where I work a couple of nights ago, and I'm trying to wrap my brain around it. Our house engineers have maintained systems at 150 amps on legs with 200 amp fuses. The power company reported a power dip, shortly after which we blew two of the 200 amp fuses. What happened? We had a drop in available voltage, so our amperage demand shot up? [more inside]
posted by nevercalm
on Jul 17, 2013 -
Looking for electrical enclosure CAD software on a budget. I would appreciate your recommendations. [more inside]
posted by nickerbocker
on Jun 25, 2013 -
I have a multimeter, and a I have a hub dynamo built into my bike wheel.
I want to attach the multimeter probes to the wires that power my front light, and see what, if any, power comes through those wires when I spin the wheel.
What do I set on the multimeter to see that happen? PS: I know nothing
posted by sandettie light vessel automatic
on Jun 20, 2013 -
Is there a method or device that will determine the amp rating of a fuse? I know that most fuses are marked with their specific amp rating, but I really need a way to verify. These are standard 5mm and 6.3mm fuses used in consumer level audio equipment. TIA
posted by Brocktoon
on May 21, 2013 -
Why is my oven crackling and sparking at the on/off switch and will it start a fire in my wall? [more inside]
posted by fruitopia
on May 4, 2013 -
The front passenger speaker and window control stopped working on my Ford Crown Victoria. The front passenger power lock switch is working fine. The window itself works normally and I can lower it from the driver side control panel.
I had to take the whole dashboard apart earlier to replace a heater core so I unplugged a lot of wires. What did I miss when putting it back together? Where do I look?
posted by racecar
on Mar 31, 2013 -
We had lots of wiring replaced recently, including two lamps connected to a dimmer switch; the dimmer was also replaced. Yesterday we noticed that the dimmer was now only allowing fully on or off. Today the light went off with a loud popping sound and a visible spark from one of the lamps, though both bulbs themselves work fine. What happened and how do I fix it? Is it likely just a faulty dimmer switch? Do I need to turn off the circuit (which has many other lights on it) as a precaution?
posted by parudox
on Mar 25, 2013 -
The electric smoker that I was so excited about last week
doesn't work! After I plug it in, it runs for about 5 minutes before tripping the GFCI outlet that I had it plugged into. I did have it on a 10 foot long extension cord (no electrical outlets on my back porch). I assume this means there is a short somewhere? [more inside]
posted by rossination
on Mar 16, 2013 -
I learned today that it's dangerous to store combustibles such as clothing near the fuse box or electrical intake. I keep my off-season wardrobe under the stairs, and the electrical intake/fuse box is also under the stairs. How far away do I need to keep this stuff? What is a safe distance?
Is it feasible to use compact-o-stuff vacuum bags to reduce the crowding in the understair cupboard? [more inside]
posted by tel3path
on Feb 27, 2013 -
Most SAD therapy lights are somewhere between utilitarian and ugly in terms of design. I want one that is beautiful, such that you could actually design a room around it. I think I would probably need to have it custom made, but I don't even know what sort of person I would begin trying to talk to. Let's ignore the question of cost for the time being, where would I find a person with the requisite skills (lighting, electrical, design, etc...) to build this for me?
posted by mmmmbobo
on Feb 12, 2013 -
Looking for a good overview for a proposed audio/visual, security and computer layout in an urban residence. e.g. list of equipment, layout, controls, outlets, wiring, speakers.
This is new, not retro-fit, the walls are open, all the wiring and controls can be neatly coordinated.
Help me see this in plan; as a well-tuned clock; not a mish-mash.
posted by ebesan
on Feb 5, 2013 -
What are the best resources and references for a novice interested in modern electrical engineering? [more inside]
posted by clearly
on Jan 26, 2013 -
I'm looking for a purely online course for an introductory electrical engineering course from a legitimate certified institution for the purposes of transferring to my current institution.
posted by gzimmer
on Jan 22, 2013 -
How could changing a car's battery cause the panel lights to come on when turning the car OFF? Or is everything in my car falling to pieces coincidentally at the same time? [more inside]
posted by Eicats
on Jan 4, 2013 -
When I was learning to program I enjoyed reading popular computer science books like Godel Escher Bach in my downtime for motivation and inspiration. Can anyone suggest good popular electrical/electronics books that are similarly inspiring and are suitable to be followed along while on a train or before bed? [more inside]
posted by Joe Chip
on Jan 2, 2013 -
My 1991 Nissan 240sx won't start - it won't even try to turn over. This one is a real mystery; I think it must be the starting circuit, so I'm trying to go through the service manual carefully and check everything. However, I still can't find the issue. Does anyone have any ideas? Details inside on what I've tried so far. [more inside]
posted by koeselitz
on Dec 21, 2012 -
I'm looking for major theatrical plays, set no later than 1950, that feature a lamp, flashlight, or other luminous prop as important to the story. If possible, please summarize the prop's usage including where in the story the prop is used. Thanks in advance!
posted by landonmoon
on Nov 12, 2012 -
I'm struggling in Electric Circuits 1 - particularly with analyzing series-parallel circuits, thevenizing and superposition. Before I look for a tutor, can anyone suggest some resources to learn it myself? [more inside]
posted by SampleSize
on Oct 31, 2012 -
Please help me verify the electrical work of my apartment maintenance high-schooler. I don't trust the work he has done. [more inside]
posted by Dunwitty
on Aug 21, 2012 -
Have you ever heard of people using duct tape and electrical tape to create art? I've been doing it since middle school, but lately, my designs are suffering from the tape refusing to hold its place, and it eventually will wrinkle, shift, and completely come undone. Need help thinking of a solution to prevent it from happening. [more inside]
posted by NotSoSiniSter
on Aug 16, 2012 -
Where can I get a giant electrical throw switch?
I've been tasked with finding & buying a gigantic ( ideally 1-2 foot long ) lever. It will go up on the wall of our web development office and it will be labeled "Interwebs: on/off". Where can I find some kind of switch that is worthy of turning the internet on or off?
That's the immediate problem, but let me give you the background - I'd love other ideas too: [more inside]
posted by doub1ejack
on Aug 5, 2012 -
having an issue with a 2000 GMC jimmy -- seemingly electrical or fuse-related. [more inside]
posted by austere
on Jul 23, 2012 -
Rented carpet cleaner seems to have killed a bunch of outlets/lights in my house. Any ideas? [more inside]
posted by wongcorgi
on Jun 26, 2012 -
I just bought a house (yay!) and I need some schoolin' by educated mefites about the relative importance of various electrical upgrades my inspector recommended. If you're an electrician, a handyman with electrical expertise, or just a homeowner that's been through this, I'd love some thoughts on what is worth spending $$$ to upgrade now, versus not that important. [more inside]
posted by iminurmefi
on May 18, 2012 -
Home electrical mystery: Why did tripping a circuit cause all of the GCFI outlets within the circuit to fail (ie none of them can be reset now)? How can I fix this? [more inside]
posted by Slarty Bartfast
on May 10, 2012 -
Light install went bad. We have a positive negative and ground wire dangling from the wall. Is it safe to turn the breaker back on if we put a wire nut on the end of each wire (separately)? More, does the ground wire need a nut? [more inside]
posted by arniec
on Mar 25, 2012 -
How do I replace the "big 3" (battery to chassis ground, engine block to chassis ground, battery positive to alternator) on a Honda s2000? [more inside]
posted by skybolt
on Mar 6, 2012 -
I just purchased a new Nest thermostat. My old thermostat gets power from an ancient millivolt system (thermopile on top of pilot light generates 0.7VDC). This is incompatible with the Nest, since the Nest requires standard 24VAC. Nest support told me they've heard some customers have had success using 24v step-down transformer. After lots of research, I think the wiring is supposed to go something like this:
W from furnace (common, -0.7VDC ?) --> W on T-Stat
24 VAC power from transformer (+/- ?) --> C on T-Stat
R from furnace (+0.7VDC ?) --> RH on T-Stat
24VAC power from transformer (+/- ?) --> RH on T-Stat
As you can see, I'm still a bit fuzzy on the details. Questions are below the fold! [more inside]
posted by jesseendahl
on Jan 22, 2012 -
I just bought a house that was partially remodeled in 2009. In both the main kitchen, and basement kitchenette, there is a single 20amp 120volt outlet located in the cabinet above the sink. Neither cabinet is made to hold a microwave. What could this outlet be for? [more inside]
posted by Diddly
on Dec 20, 2011 -
Help me understand the national electric code with regard to rewiring and updating several rooms in my 1940s-era house. [more inside]
posted by JohnFredra
on Dec 6, 2011 -